diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index af1dac3b..c846a9f9 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -46,7 +46,7 @@ jobs:
       uses: jwlawson/actions-setup-cmake@v1.13
       with:
         # Use minimum supported version
-        cmake-version: '3.0.x'
+        cmake-version: '3.13.x'
 
     - name: Build
       shell: cmd
diff --git a/CMakeLists.txt b/CMakeLists.txt
index e381f6df..8a8f1bc3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,9 +1,9 @@
-cmake_minimum_required(VERSION 3.0...3.5 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.13 FATAL_ERROR)
 
 project(isle CXX)
 
 option(ISLE_BUILD_APP "Build ISLE.EXE application" ON)
-option(ISLE_USE_SMARTHEAP "Build with SmartHeap" ON)
+option(ISLE_USE_SMARTHEAP "Build with SmartHeap" ${MSVC})
 
 add_library(lego1 SHARED
   LEGO1/act1state.cpp